init

2026-05-12 21:10:38 +02:00
commit ab96d82fcf
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+<?php
+declare(strict_types=1);
+
+/**
+ * CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
+ * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * For full copyright and license information, please see the LICENSE.txt
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
+ * @copyright     Copyright (c) Cake Software Foundation, Inc.
+ *                (https://github.com/cakephp/migrations/tree/master/LICENSE.txt)
+ * @link          https://cakephp.org CakePHP(tm) Project
+ * @since         5.3.0
+ * @license       https://opensource.org/licenses/mit-license.php MIT License
+ */
+namespace Cake\Database\Schema;
+
+/**
+ * UniqueKey class
+ *
+ * Models a unique key constraint, and provides methods to set driver specific attributes.
+ */
+class UniqueKey extends Constraint
+{
+    /**
+     * Constructor
+     *
+     * @param string $name The name of the constraint.
+     * @param array<string> $columns The columns to constraint.
+     * @param array<string, int>|null $length The length of the columns, if applicable.
+     */
+    public function __construct(
+        protected string $name,
+        protected array $columns,
+        protected ?array $length = null,
+    ) {
+        $this->type = self::UNIQUE;
+    }
+
+    /**
+     * Sets the constraint columns.
+     *
+     * @param array<string>|string $columns Columns
+     * @return $this
+     */
+    public function setColumns(string|array $columns)
+    {
+        $this->columns = (array)$columns;
+
+        return $this;
+    }
+
+    /**
+     * Gets the constraint columns.
+     *
+     * @return ?array<string>
+     */
+    public function getColumns(): ?array
+    {
+        return $this->columns;
+    }
+
+    /**
+     * Sets the constraint type.
+     *
+     * @param string $type Type
+     * @return $this
+     */
+    public function setType(string $type)
+    {
+        $this->type = $type;
+
+        return $this;
+    }
+
+    /**
+     * Gets the constraint type.
+     *
+     * @return string
+     */
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+    /**
+     * Sets the constraint name.
+     *
+     * @param string $name Name
+     * @return $this
+     */
+    public function setName(string $name)
+    {
+        $this->name = $name;
+
+        return $this;
+    }
+
+    /**
+     * Gets the constraint name.
+     *
+     * @return ?string
+     */
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    /**
+     * Sets the constraint length.
+     *
+     * In MySQL unique constraints can have limit clauses to control the number of
+     * characters indexed in text and char columns.
+     *
+     * @param array<string, int> $length array of length values
+     * @return $this
+     */
+    public function setLength(array $length)
+    {
+        $this->length = $length;
+
+        return $this;
+    }
+
+    /**
+     * Gets the constraint length.
+     *
+     * Can be an array of column names and lengths under MySQL.
+     *
+     * @return array<string, int>|null
+     */
+    public function getLength(): ?array
+    {
+        return $this->length;
+    }
+
+    /**
+     * Converts a constraint to an array that is compatible
+     * with the constructor.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(): array
+    {
+        return [
+            'name' => $this->name,
+            'type' => $this->type,
+            'columns' => $this->columns,
+            'length' => $this->length,
+        ];
+    }
+}